Answer:
50.27
Step-by-step explanation:
It's D because -2(-7-7)= -28 and -2(21-7)=-28
Answer:
180 min
Step-by-step explanation:
The first thing is to get the number of days in two weeks that he would read the book, since he only does it when he goes to school. School goes from Monday to Friday, that is to say 5 days, how two is two weeks would be a total of 10 days. Mathematically, it would be the equation, where X would be the number of minutes inside the parentheses and the minutes read before and after school:
X = 10 * (10 + 8)
Solving:
X = 180
In other words, in two weeks he has read a total of 180 minutes.
Answer:
26+13i
Step-by-step explanation:
(4+7i)(3−2i)
Multiply complex numbers 4+7i and 3−2i like you multiply binomials.
4×3+4×(−2i)+7i×3+7(−2)i^2
By definition, i^2 is −1.
4×3+4×(−2i)+7i×3+7(−2)(−1)
Do the multiplications.
12−8i+21i+14
Combine the real and imaginary parts.
12+14+(−8+21)i
Do the additions.
26+13i
Real part steps:
(4+7i)(3−2i)
Multiply complex numbers 4+7i and 3−2i like you multiply binomials.
Re(4×3+4×(−2i)+7i×3+7(−2)i^2)By definition, i^2 is −1.
Re(4×3+4×(−2i)+7i×3+7(−2)(−1))
Do the multiplications in 4×3+4×(−2i)+7i×3+7(−2)(−1).
Re(12−8i+21i+14)
Combine the real and imaginary parts in 12−8i+21i+14.
Re(12+14+(−8+21)i)
Do the additions in 12+14+(−8+21)i.
Re(26+13i)
The real part of 26+13i is 26.
26
Answer: can we be friends I’m homeless and live at the Krusty Krab
Step-by-step explanation: